Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and apparatus for processing random access collision

A processing method and random access technology, applied in the communication field, can solve the problem of low success rate of random access and achieve the effect of improving the success rate

Active Publication Date: 2014-06-04
DATANG MOBILE COMM EQUIP CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Embodiments of the present invention provide a random access conflict processing method and device to solve the problem of low random access success rate caused by SYNC_UL code conflict in the existing distributed antenna system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for processing random access collision
  • Method and apparatus for processing random access collision
  • Method and apparatus for processing random access collision

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] As mentioned in the background art, under distributed antenna systems (including distributed smart antennas, distributed single antennas, Portion cells and other distributed antenna systems), if the existing SYNC_UL code conflict processing strategy is followed, regardless of whether the conflict is discarded uniformly Or simply select the SYNC_UL code with the strongest received power for scheduling. There will be a problem of low random access success rate or high subsequent PRACH reception failure rate.

[0037] For this reason, the embodiment of the present invention proposes a random access processing method. When a SYNC_UL code conflict between antenna elements is detected in a distributed antenna system, only the isolation between the conflicting antenna elements When the requirements cannot be met, the conflicting SYNC_UL codes will be discarded, and when the isolation can meet the requirements, the scheduling will continue according to the corresponding SYNC_UL cod...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention discloses a method and apparatus for processing random access collision. By the technical scheme of the embodiment of the invention, whether enough isolation exists between corresponding antenna units can be judged when SYNC_UL (synchronous code uplink) code collision exists between the antenna units in a distributed antenna system; and the SYNC_UL code can be discarded when enough isolation does not exist between corresponding antenna units, so that the random access is continuously performed by adopting the SYNC_UL code having collision under the condition that the antenna units having SYNC_UL code collision have enough isolation, and the success ratio of random access in the distributed antenna system is improved.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a method and equipment for processing random access conflicts. Background technique [0002] Random access is the basic process of the physical layer of the TD-SCDMA (Time Division Synchronous Code Division Multiple Access) system. Only when the terminal device establishes an uplink synchronization process, can normal service interaction be carried out. In the prior art, the flow diagram of the random access process is as follows: figure 1 Shown. [0003] According to the content of the existing protocol standard, the entire TD-SCDMA system includes 256 different SYNC_UL codes (Synchronous Code Uplink), which are specifically divided into 32 groups, each with 8 codes. There is a correspondence between the code group and the cell code word. After the cell code word is determined, the SYNC-UL code group corresponding to the cell is confirmed. [0004] In a specific implemen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
Inventor 刘杨陈京军
Owner DATANG MOBILE COMM EQUIP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com